# break: 退出整个循环
# continue：跳过当前循环

print("break演示")
i = 0
while i <= 7:
    if i == 3:
        break
    print(i)
    i += 1

print("continue演示")
i = 0
while i <= 7:
    if i == 3:
        i += 1
        continue
    print(i)
    i += 1

